His personality is more edgy.. when he's cold he's very cold, when he's mad he's really mad, when he's playing around he hits you hard, even though he was serious, but it still hurts! But he never hits Yoochun because Yoochun's really sensitive, once back in training days, he hit Yoochun playingly, and Yoochun cried.. so never again after that. Junsu went through a lot of tough times during training days, despite the fact that he was one of the best trainees. Once his voice went away, a lot of people who were jealous were all stumping on him. That was his darkest time.

Junsu's very strong and independent even though he acts cute in front of the camera, but off the camera he's much more mature than he appears to be on camera. It's said that if SM has plan for them to go solo, Junsu would make the first solo debut. Junsu holds himself and others to very high standards when it comes to music, he doesn't allow himself to make any mistake.. a perfecionist. Eun Hyuk of SUJU is Junsu's best, he will kick others butt for Junsu. Once during trainee days, someone was making fun of Junsu, Eun Hyuk came in and slapped him. ~ An SM Insider

If this is true, I am seeing this whole JaeChunSu/HoMin thing in a different light. Methinks that Junsu might be a lot smarter than he's let on. He is majoring in music business. I remember being surprised by that. Now...

And also, if the above is true, that meant that Junsu had the most to lose by leaving SM. He had also been there as a trainee the longest. Not only did he do it anyway, but he lead the charge. Curious.

I wonder if there is/was some intergroup struggle for leadership between him and Yunho and this is the result? Curious.